Pigeons wearing tiny, hi-tech backpacks have started patrolling England's capital city to monitor the air quality of the famous "London fog," NBC News reported. [[372225281, C]]
The goal of the three-day London project, named Pigeon Air Patrol, is to "raise awareness and change minds about pollution," according to Plume Labs, creators of a personal pollution app that delivers real-time updates and advice on how poor air quality impacts health.
The birds sport a GPS device and a specially designed sensor capable of measuring levels of nitrogen oxide, volatile compounds and other pollutants. [[238427591, C]]